Plural dispensing valve



April 11, 1961 A. TURAK PLURAL DISPENSING VALVE 3 Sheets-Sheet 1 FiledDec. 30, 1957 M; MW .w.

April 11, 1961 TURAK 2,979,079

PLURAL DISPENSING VALVE Filed Dec. 50, 1957 3 Sheets-Sheet 2 FIG- 2 4 IINVENTOR.

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PLURAL DISPENSING VALVE Anthony Turak, 11208 Lorain Ave., Cleveland,Ohio Filed Dec. 30, 1957, Ser. No. 705,970

15 Claims. (Cl. 137-599) The invention relates in general to fluiddispensing valves and more particularly to plural discharge conditiondispensing valves.

Fluid dispensing valves such as for beverages have heretofore been usedand the present invention relates to an improvement in providingmultiple discharge conditions in a dispensing valve. A typical use forthis valve may be such as in soda fountains. wherein a plurality offlavored beverages are desired to be dispensed, each as mixed withpressurized soda water or plain water. Often a limited space isavailable at such soda fountains for such dispensing valves and it ishighly desirable to have a maximum number of fluids dispensed in aminimum of space. The present invention provides for a maximum of sixdifferent fluid discharge conditions including mixed fluids and thiswith a single dispensing valve to use a minimum of space at the sodafountain and to minimize maintenance and cleaning problems. Since onlyone dispensing valve is utilized, only one valve is needed to be kept inrepair and only one valve need be periodically cleaned for sanitation.

The invention is an improvement on my Dispensing valve application,Serial No. 694,830, filed November 6, 1957.

Accordingly, an object of the invention is to provide a dispensing valvewith plural fluid discharge and mixing conditions.

Another object of the invention is to provide a dispensing valve whichmixes fluid from a common line with fluids from selected ones of aplurality of other lines.

Still another object of the invention is to provide a sixin-onedispensing valve having a total of six fluid discharge and mixingconditions.

Still another object of the invention is to provide a six-in-onedispensing valve which in a typical use may mix soda water with any oneof four different flavoring extracts for four flavored beverages plus ahard and soft soda water discharge condition.

Another object of the invention is to provide a dispensing valve whereina plurality of valve plugs are utilized with three of these plugsconnected in series and return to the first of these plugs for aparticular fluid discharge condition.

Another object of this invention is to provide a dispensing valve withthree valve plugs which may be connected in series for a first dischargecondition and wherein only two of these valve plugs are connected inseries for a second discharge condition.

Still another object of the invention is to provide a dispensing valvewith three handles each of which has two operative and a neutralposition for selecting a total of s'm fluid discharge conditions.

Other objects and a fuller understanding of this invention may be had byreferring to the following description and claims, taken in conjunctionwith the accompanying drawing, in which:

Figure 1 is an isometric partially exploded view of the completedispensing valve;

2,979,079 Patented Apr. 11, 1961 Figure 2 is a side elevation partiallyin section of the complete valve;

Figure 3 is a horizontal central sectional view of the main part of thevalve;

Figure 4 is an elevational View of the interior face of the third valveplug;

Figure 5 is an exploded elevational view of the front part of thedispensing valve;

Figures 6 and 7 are sectional views through the first and second valveplugs, respectively, at the different bores in these plugs with theplugs in the neutral position of Figures 2 and 3;

Figures 8 and 9 are vertical sectional views through alternativesecondary valve plugs which may be used in place of the regular secondvalve plug; and

Figure 10 is an isometric diagrammatic view of the flow through thedispensing valve.

Figures 1, 2, and 3 show the dispensing valve 15 in the neutralposition; namely, wherein all fluid flow is shut off. Figure 2 showsdiagrammatically a housing 16 which may enclose the working parts of thedispensing valve and which is preferably readily removable for periodiccleaning. The dispensing valve 15 has a supporting shell 17, a body 18carried by the shell 17, and with the body 18 containing first andsecond valve chambers 19 and 20'. First and second valve plugs 21 and 22are contained in the first valve chamber and a third valve plug 23 iscontained in the second valve chamber 20.

First, second, third, fourth, and fifth inlet lines 26 through 30 arecarried within the shell 17. A forward extension 31 of the shellprovides the terminus for these five inlet lines. Line 28 may beconsidered a soda Water line or common line and splits into two inlets28A and 2833 in the forward extension 31.

The body 18 has first and second body halves 35 and 36 with first andsecond semi-cylindrical surfaces 37 and 38 in the body halves 35 and 36,respectively, with these semi-cylindrical surfaces defining the firstvalve chamber 19. A U-shaped frame 39 embraces both body halves and isfastened to the forward extension 31 at ears 40 by the screws 41. By thetightening of these screws 41, the body 18 is assembled with the valveplugs 21 and 22 to form a leak-tight connection.

First, second, third, fourth, and fifth conduit means 44 to 48,inclusive, are in the first body half 35 and connect with thecorrespondingly designated inlet lines 26 through 30. The third conduitmeans 46 includes conduits 46A and 46B meshing respectively with inletlines 28A and 28B. The fifth conduit 48 does not go in a straight linethrough the first body half 35, rather the conduit extends in threemutually perpendicular directions starting at the fifth inlet line 30and terminating in a plane containing the terminating ends of all fiveconduit means 44 through 48 which plane is a diametral plane, horizontalas the valve 15 is normally used, through the first valve chamber 19.The fifth conduit means is formed by drilling intersecting bores in thefirst body half 35 with the exterior ends of these bores on the side ofthe valve 15 being closed as by the plug 49. The first conduit means 44-connects with the first inlet line 26 in a manner similar to that shownfor the connection of the fifth conduit means 48; namely, by mutuallyperpendicular intersecting bores so that the first conduit means 44terminates in the diametral plane of the first valve chamber 19.

The first valve plug contains first, second, and third bore means 51,52, and 53 which selectively may mesh with the first, second, and thirdconduit means 44, 45, and 46. The second valve plug 22 contains a partof the third bore means 53 and also contains fourth and fifth bore means54 and 55 for selective meshingwith the fourth and fifth conduit means47 and 48. The third bore means 53 is partially in the first and secondvalve plugs 21 and 22, and in the first valve plug 21 it includes aby-pass passageway 58.

Figure 6 shows sections through the first valve plug 21 with this valveplug in a neutral position and shows an axial bore 59 as a part of thethird bore means 53. The third bore means also includes radial bores 61to 65, inclusive, as best shown in Figure 6. The sections of the valveplug 21, as shown in Figure 6, are as viewed from the side of the valveshown in Figure 2.

Figure 7 shows vertical sections through the valve plug 22 at thevarious bores therein and the third bore means 53 is shown in theright-most section of Figure 7. This third bore means in the secondvalve plug 22 includes an axial bore 66 axially aligned with the bore 59in the first valve plug 21 and includes bores 67 and 68 and return bore69.

A first handle 71 is connected to rotatively position the first valveplug 21 and a second handle 72 is connected to rotatively position thesecond valve plug 22.

The second body half 36 includes conduits which may selectively meshwith the bores in the valve plugs 21 and 22. These conduits include aconduit 73 which may mesh with the first bore means 51 when the firsthandle 71 has moved to a first operative position 71A, as shown inFigure 2. In such case the first bore 51, as seen in Figure 6, would behorizontal to provide fluid passage from the first inlet line 26 throughthe first valve plug 21 to the conduit 73. The conduit 73 has'a rightangle bend and discharges downwardly through an outlet 74, as seen inFigure 2, to the discharge opening 75 of the entire dispensing valve 15.Similarly, conduits 76, 77, and 78 may selectively mesh with the second,fourth, and fifth bore means 52, 54, and 55, and each has a downwardlydirected outlet leading to the discharge opening 75. A conduit 79 mayselectively mesh with the by-pass passageway 58 of the third bore meanswhen the first valve plug 21 is in the neutral position. This conduit 79leads to the second valve chamber 20. The second valve plug 23 in thischamber 20 contains passageway means 80 which is generally T-shaped andwhich directs fluid from the conduit 79 into either a return conduit 81or into a discharge conduit 82. The discharge conduit 82 connects to adischarge tube 83 which goes directly to the discharge opening 75 of thevalve 15, and by-passes a diffuser 84. In the neutral position shown inFigures 1, 2, 3, 4, and 5, none of the conduits and passageways are inmesh and hence fluid flow therethrough is shut 01f.

A third handle 85 is connected to operate the third valve plug 23.Figure shows generally the operative connection wherein a set screw 86connects the handle 85 to a sleeve 87. This sleeve has a taperedshoulder 88 which bears against the interior surface of a taperedaperture 89 in the forward end of the frame 39. A valve stem 90 isreceived within the sleeve 87 and has a cylindrical shoulder 91receivable within a like shoulder in the sleeve 87. A diametrical slot92 receives a bar 93 connected to the third valve plug 23. The valvestem 90 is internally threaded at 94 to receive a cone point set screw95 which may be adjusted to bear against the cone point recess in thebar 93 so as to press the flat face 97 of the valve plug 23 against thebottom of the third valve chamber 2!) to form a fluid-tight seal. Alocking set screw 98 is received within the threads 94 to lock in placethe set screw 95.

Operation The first handle 71 may be moved to a first operativeposition, as shown at the phantom position 71A in Figure 2, whereat thefirst valve plug 21 would be rotated about thirty degrees. This permitsthe first inlet line to be opened through the first bore 51 to thedischarge opening 75 of the valve 15. Simultaneously, the third inletline or soda line is open through line 28A, conduit 46A, bore 61, andbore 63 to a body outlet in the space between the lower portions of thebody halves and 36. The soda water then flows over the difiuser 84 tothe discharge opening 75. If a flavored syrup is supplied through thefirst inlet line 26, it will mix with the soda and be washed down by thesoda from the diffuser 84 to pass the intermixed discharge out thedischarge opening 75. This could provide an intermixed beverage such asginger ale from a mixture of soda water and flavoring syrup or extract.

With the first handle 71 moved to a second operative position 71B, asalso shown in phantom in Figure 2, the second bore means 52 is placed ina horizontal position to provide fluid communication from the secondinlet line 27 through conduit 76 to the discharge opening 75. Soda wateris also admitted from the third inlet line 28 through bores 62 and 65through the body outlet and the diffuser 84 to the discharge opening 75.This would again provide intermixed discharge of two fluids; namely,from inlet lines 27 and 28. With the first handle 71 in a neutralposition, as shown in full lines in Figure 12, fluid communication ofthe first and second lines 26 and 27 is shut ofi and the by-passpassageway 58 registers with the inlet line 28A and the conduit 79.

The second handle 72 also has first and second operative positions 72Aand 72B, as shown in Figure 10, and in the first operative position 72Athere is intermixed discharge of fluids from the third and fifth inletlines 28 and 30. As seen in Figure 7, with this valve plug 22 rotatedapproximately thirty degrees counterclockwise, the fifth bore 55 and thebore 67 will both be horizontal for registry with the fifth and thirdinlet lines. Soda water or other fluid in the third inlet line 28 willthus pass through the bore 67 into the axial bores 66 and 59 and passdownwardly through the bore 64 to the body outlet and through thediffuser 84 to the discharge opening 75.

With the second handle 72 in the second operative A position 72B, thevalve plug 22 is rotated approximately thirty degrees clockwise, as seenin Figure 7, whereat bore 54 will be in' registry with the inlet line 47and the conduit 77. Also, the bore 68 will be in registry with the thirdconduit 46B and fluid flow will pass through axial bores 66 and 59 andbore 64 through the diffuser 84 to the discharge opening 75. With thesecond handle 72 in the neutral position, as shown in full lines inFigure 1, the return bore 69 will register with the return conduit 81and the bores 67 and 68 will be out of registry with the third conduit46B.

With the first and second handles 71 and 72 in the neutral position,conduits and passageways are in registry to permit discharge of fluidfrom the third inlet line as controlled by the third handle 85 and thirdvalve plug 23. Figure 10 diagrammatically illustrates the flow ascontrolled by this third valve plug 23. With the handles 71 and 72 inneutral position, fluid from the third inlet line 28 is through theby-pass passageway 58 and the conduit 79 to the third valve plug 23.When this valve plug 23 is in the neutral position, as shown in Figure4, fluid flow is shut oif. However, when the third handle 85 is moved tothe first operative position 85A, as shown in Figure 10, then fluid isdirected by the T-shaped passageway means to the return conduit 81 andreturn bore 69 to the axial bores 66 and 59. This fluid from the thirdline then passes through bore 64 and difiuser 84 to the dischargeopening 75. With soda water as this third fluid, this gives a soft sodadischarge condition since the diffuser breaks up the soda water andpermits the bubbles of gas to form in the soda water as it is dispensedfrom the valve 15.

In this soft soda discharge condition it is noted that there isconnected in series three valve plugs and then again the first of thisseries of three. This series connection is through the first valve plug21, the third valve plug 23, and the second valve plug 22, and thenreturned to the first valve plug 21. This series connection includes thefirst bore 58, the passageway 80, the return bore 69, the axial bores 66and 59, and the bore 64. It will be noted that the first and secondvalve plugs 21 and 22 can control this discharge because each of thesevalve plugs must be in the neutral position in order to permit thisfluid flow. Also, the fact that this particular fluid dischargecondition passes in series through three valve plugs to return to thefirst valve plug of the series is a reason why such a compact, completedispensing valve 15 is created by the invention with a total of onlyfive inlet lines, yet with a total of six different fluid dischargeconditions, four of which are intermixed discharge of two fluids.

With the third handle 85 moved to the second operative position 85B,which is at right angles to the positions shown in Figure 10, fluid fromthe third inlet line 28 enters the T-shaped passageway 80 and isdirected into the discharge conduit 82 and through the discharge tube 83directly to the discharge opening 75. In such case the diffuser 84 isby-passed and the third fluid is directed in a hard or concentratedstream. This discharge condition is used in soda fountains, for example,in mixing ice cream sodas.

Another feature of the invention is that the complete dispensing valve15 may be used in many different environments with only a minimum ofchange. The first valve plug 21 may be considered to be a master valveplug and the second valve plug 22 may be considered a subordinant valveplug. Figures 8 and 9 show additional secondary plugs 22A and 228,respectively, which may replace the second valve plug 22 of Figure 7 fordifferent fluid discharge conditions. Such replacement by either valveplug 22A or 22B still retains a total of six fluid discharge conditionsof the valve 15. The valve, as previously described, might be used withflavoring syrup sup ply sources connected to the first, second, fourth,and fifth inlet lines 26, 27, 29, and 30, and with soda water connectedto the third inlet line 28. When the secondary valve plug 22A issubstituted for valve plug 22, the fourth inlet line 29 may be connectedto a source of plain water. The valve plug 22A has a fifth bore 55A toselectively mesh with the conduit 43. It also has bores 101 and 102 toselectively mesh with the fourth conduit 47. It will be noted that theaxial bore 66A of this valve plug 22A has been axially lengthened toprovide communication between boxes 101, 102, and 69 as well ascommunication with the axial bore 59 of the first valve plug 21. Withthis secondary valve plug 22A in place in cooperation with the firstvalve plug 21, plain Water from the fourth inlet line 29, in the firstoperative position 72A of the second handle 72, will pass through bore101, axial bores 56A and 59, and bore 64 to the discharge opening 75.Thus, plain water only is dispensed. In the second operative position72B of the second handle 72, bore 55A communicates with the fifthconduit 48 to pass a flavored syrup to the discharge opening 75, andsimultaneously bore 102 is in registry with the conduit 47 to pass waterthrough the diffuser S4 to the discharge opening 75. This provides amixture of flavored syrup and plain water for a non-carbonated beverage.Thus, with this second valve plug 22A in use, the valve 15 will dispensea total of two carbonated beverages, one carbonated beverage, plainwater, and hard and soft soda.

The Figure 9 shows another secondary valve plug 228 which may besubstituted in place of valve plug 22. This valve plug 22B also has thelengthened axial bore 66A, the return bore 59, and the bore 101. It doesnot have a bore corresponding to bore 192 of valve plug 22A, but it doeshave the bore 55A for selective communication with the fifth conduit 48.A bore m3 is provided in the diametral plane of bore as for selectivemeshing with the conduit 4613. With the handle 72 in the first operativeposition 72A, bore 101 will register with the conduit 47 for a plainwater discharge condition of the valve. With the handle 72 moved to thesecond operative position 7213,

bore 55A passes fluid from the fifth conduit 48 and bore 163 passesfluid, such as soda Water, from the third inlet line 28 through thediffuser 84 to the discharge opening 75. This provides discharge of acarbonated beverage. With this valve plug 22B in use together with themaster valve plug 21, the valve 15 provides for control of discharge ofthree carbonated beverages, one plain water, and hard and soft soda.

Although this invention has been described in its preferred form with acertain degree of particularity, it is understood that the presentdisclosure of the preferred form has been made only by way of exampleand that numerous changes in the details of construction and thecombination and arrangement of parts may be resorted to withoutdeparting from the spirit and the scope of the invention as hereinafterclaimed.

What is claimed is:

l. A valve comprising, in combination, a body having an inlet line and adischarge opening, first, second, and third valve plugs in said valvebody each having a first operative position and a neutral position andsaid third valve plug additionally having a second operative position, afluid diffuser in said valve, first conduit means in said first valveplug and said body and connecting said inlet line through said diffuserto said discharge opening with said first valve plug in said firstoperative position, land means in said first valve plug closing off saidfirst conduit means in said neutral position of said first valve plug,and second conduit means in said first, second and third valve plugs andsaid body and connecting in series said first, third, and second valveplugs, and again said first valve plug and effecting fluid communicationtherethrough from said inlet line through said diffuser to saiddischarge opening with said first and second valve plugs in said neutralpositions and said third valve plug in said first position.

2. A valve comprising, in combination, a body having an inlet line and adischarge opening, first, second, and third valve plugs in said valvebody each having a first operative position and a neutral position andsaid third valve plug additionally having a second operative position, afluid diffuser in said valve, first conduit means in said first valveplug and said body and connecting said inlet line through said diffuserto said discharge opening with said first valve plug in said firstoperative position, land means in said first valve plug closing off saidfirst conduit means in said neutral position of said first valve plug,second conduit means in said first, second and third valve plugs andsaid body and connecting in series said first, third, and second valveplugs, and again said first valve plug and effecting fluid communicationtherethrough from said inlet line through said diffuser to saiddischarge opening with said first and second valve plugs in said neutralpositions and said third valve plug in said first position, and thirdconduit means in said first and third valve plugs and said body andconnecting in series said first and third valve plugs and effectingfluid communication therethrough from said inlet line to said dischargeopening and by-p-assing said diffuser with said first and third valveplugs in said neutral and second positions, respectively.

3. A valve comprising, in combination, a body having an inlet line and adischarge opening, first, second, and third valve plugs in said valvebody each having a first operative position and a neutral position andsaid third valve plug additionally having a second operative position, afluid diffuser in said valve, said first valve plug being a master valveplug, said second valve plug being replaceable by secondary plugs ofdifferent form for difierent combinations of fluid discharge with saidmaster valve plug, first conduit means in said first valve plug and saidbody and connecting said inlet line through said diffuser to saiddischarge opening with said first valve plug in said first operativeposition, land means in said first valve plug closing off said firstconduitmeans in said neutral position of said first valve plug, secondconduit means in said first, second and third valve plugs and said bodyand connecting in series said first, third, and second valve plugs, andagain said first valve plug and effecting fluid communicationtherethrough from said inlet line through said diffuser to saiddischarge opening with said first and second valve plugs in said neutralpositions and said third valve plug in said first position, and thirdconduits means in said first and third valve plugs and said body andconnecting in series said first and third valve plugs and effectingfluid communication therethrough from said inlet line to said dischargeopening and by-passing said difluser with said first and third valveplugs in said neutral and second positions, respectively.

4. A valve comprising, in combinaion, a body having an inlet line and adischarge opening, first, second and third valve plugs in said valvebody each having first and second operative positions and anintermediate position, a fluid difiuser in said valve, first conduitmeans in said first valve plug and said body and connecting said inletline through said diffuser to said discharge opening with said firstvalve plug in either of said first and second positions, saidintermediate positions of said first valve plug closing oil said firstconduit means, second conduit means in said first, second and thirdvalve plugs and said body and connecting in series said first, third andsecond valve plugs and again said first valve plug and effecting fluidcommunication therethrough from said inlet line through said diffuser tosaid discharge opening with said first and second valve plugs in saidintermediate positions and said third valve plug in said first position,third conduit means in said first and third valve plugs and connectingin series said first and third valve plugs and efiecting fluidcommunication therethrough from said inlet line to said dischargeopening and by-passing said diffuser with said first and third valveplugs in said intermediate and second positions, respectively, and saidintermediate position of said third valve plug closing oil fluidcommunication therethrough.

5. A valve comprising, in combination, a body having an inlet line and adischarge opening, first, second and third valve plugs in said valvebody each having a first operative position and a neutral position andsaid third valve plug additionally having a second operative position,first conduit means in said first valve plug and said body andconnecting said inlet line to said discharge opening with said firstvalve plug in said operative position, said neutral position of saidfirst valve plug closing off "said first conduit means, second conduitmeans in said first, second and third valve plugs and said body andconnecting in series said first, third, and second valve plugs and againsaid first valve plug and effecting fluid communication therethroughfrom said inlet line to said discharge opening with said first andsecond valve plugs in said neutral position and said third valve plug insaid first position, third conduit means in said first and third valveplugs and said body and connecting in series said first and third valveplugs and effecting fluid communication therethrough from said inletline to said discharge opening with said first and third valve plugs insaid neutral and second positions, respectively, and said neutralposition of said third valve plug closing olf fluid communicationtherethrough.

6. A valve comprising, in combination, a body having an inlet line and adischarge opening, first, second and third valve plugs in said valvebody each having first and second operative positions and anintermediate position, first conduit means in said first valve plug andsaid body and connecting said inlet line to said discharge opening withsaid first valve plug in either of said first and second positions, saidintermediate position of said first valve plug closing off said firstconduit means, second conduit means in said first, second and thirdvalve plugs and said body and connecting in series said first, third andsecond valve plugs and again said first valve plug and efii'ecting fluidcommunication therethrough from said inlet line to said dischargeopening with said first and second valve plugs in said intermediateposition and said third valve plug in said first position, third conduitmeans in said first and third valve plugs and said body and connectingin series said first and third valve plugs and effecting fluidcommunication therethrough from said inlet line to said dischargeopening with said first and third valve plugs in said intermediate andsecond positions, respectively, and said intermediate position of saidthird valve plug closing ofi fluid communication therethrough.

7. A dispensing valve, comprising, in combination, a valve body havingan outlet and an inlet line, a first valve plug in said body having anoperative and a neutral position, a second valve plug in said bodyhaving an operative and a neutral position, a third valve plug in saidvalve body having first and second positions and an intermediate ofiposition, first conduit means in said valve body and said first valveplug providing discharge of fluid from said inlet line with said firstvalve plug in said operative position, second conduit means in saidvalve body and said first, second and third valve plugs directingre-entrant fluid flow from said inlet line through said first, third andsecond valve plugs and re-entrantly through said first valve plug Withsaid third valve plug in said first position and said first and secondvalve plugs in said neutral position, and third conduit means in saidvalve body and said first and third valve plugs directing fluid flow inseries from said inlet line through said first and third valve plugsWithout re-entrant passage through said first valve plug with said thirdvalve plug in said second position and said first valve plug in saidneutral position.

8. A dispensing valve, comprising, in combination, a valve body havingan outlet and first and second inlet lines, first, second and thirdvalve plugs in said valve body each having an operative position and aneutral position and said third valve plug having a second operativeposition, first conduit means in said valve body and said first valveplug providing intermixed discharge of fluid from said first and secondinlet lines with said first valve plug in said operative position,second conduit means in said valve body and said first, third, andsecond valve plugs directing re-entrant fluid flow from said first valveplug through said third and second valve plugs and reentrantly throughsaid first valve plug with said third valve plug in said first positionand said first and second valve plugs in said neutral position, andthird conduit means in said valve body and said first and third valveplugs directing fluid flow in series through said first and third valveplugs without re-entrant passage through said first valve plug with saidthird valve plug in said second position and said first valve plug insaid neutral position.

9. A six-way dispensing valve, comprising, in combination, a valve bodyhaving an outlet and first, second, third, fourth and fifth inlet lines,first, second and third two-way valve plugs in said valve body eachhaving first and second positions and a neutral position, first conduitmeans in said valve body and said first valve plug providing intermixeddischarge of fluid from said first and third inlet lines to said bodyoutlet with said first valve plug in said first position, second conduitmeans in said valve body and first valve plug providing intermixeddischarge of fluid from said second and third inlet lines to said bodyoutlet with said first valve plug in said second position, third conduitmeans in said valve body and said second valve plug providing intermixeddischarge of fluid from said third and fourth inlet lines to said bodyoutlet with said second valve plug in said first position, fourthconduit means in said valve body and said second valve plug providingintermixed discharge of fluid from said third and fifth inlet lines tosaid body outlet with said second valve plug in said second position,fifth conduit means in said valve body and first, second and third valveplugs directing re-entrant fluid flow from said first valve plug throughsaid third and second valve plugs and re-entrantly through said firstvalve plug with said third valve plug in said first position and saidfirst and second valve plugs in said neutral position, and sixth conduitmeans in said valve body and said third valve plug directing fluid flowin series through said first and third valve plugs without re-entrantpassage through said first valve plug with said third valve plug in saidsecond position and said first valve plug in said neutral position.

10. A dispensing valve, comprising, in combination, a valve body havingan inlet line and an outlet, first, second and third valve plugs in saidvalve body each having an operative and a neutral position and with saidthird valve plug also having a second operative position, first conduitmeans in said valve body and said first valve plug providing dischargeof fluid from said-inlet line with said first valve plug in saidoperative position, second conduit means connecting in series said firstand third valve plugs with said first valve plug in said neutralposition, third conduit means in said valve body and third valve plugand including said second conduit means and directing re-entrant fluidflow from said first valve plug through said third and second valveplugs and re-entrantly through said first valve plug with said thirdvalve plug in said first operative position, and fourth conduit means insaid valve body and said third valve plug and including said secondconduit means and directing fluid flow in series through said first andthird valve plugs without re-entrant passage through said first valveplug with said third valve plug in said second operative position.

11. A dispensing valve, comprising, in combination, a valve body havingan outlet and first and second inlet lines, first, second and thirdvalve plugs in said valve body each having an operative and a neutralposition and with said third valve plug having a second operativeposition, first conduit means in said valve body and said first valveplug providing intermixed discharge of fluid from said first and secondinlet lines to said body outlet with said first valve plug in saidoperative position, second conduit means connecting in series said firstand third valve plugs with said first valve plug in said neutralposition, third conduit means in said valve body and third valve plugand including said second conduit means and directing re-entrant fluidflow from said first valve plug through said third and second valve plugand reentrantly through said first valve plug with said third valve plugin said first operative position, and fourth conduit means in said valvebody and said third valve plug and includ ing said second conduit meansand directing fluid flow in series through said first and third valveplugs without re-entrant passage through said first valve plug with saidthird valve plug in said second operative position.

12. A six-way dispensing valve, comprising, in combination, a valve bodyhaving an outlet and first, second, third, fourth and fifth inlet lines,first and second twoway valve plugs in said valve body each having firstand second operative positions and an intermediate position, firstconduit means in said valve body and said first valve plug providingintermixed discharge of fluid from said first and third inlet lines tosaid body outlet with said first valve plug in said first position,second conduit means in said valve body and first valve plug providingintermixed discharge of fluid from said second and third inlet lines tosaid body outlet with said first valve plug in said second position,third conduit means in said valve body and said second valve plugproviding intermixed discharge of fluid from said third and fourth inletlines to said body outlet with said second valve plug in said firstposition, fourth conduit means in said valve body and said second valveplug providing intermixed discharge of fluid from said third and fifthinlet lines to said body outlet with said second valve plug in saidsecond position, fifth conduit means connecting in series said first andthird valve plugs with said first valve plug in said intergimme mediateposition, sixth conduit means in said valve body and third valve plugand including said fifth conduit means and directing re-entrant fluidflow from said first valve plug through said third and second valveplugs and re-entrantly through said first valve plug with said thirdvalve plug in said first position, and seventh conduit means in saidvalve body and said third valve plug and including said fifth conduitmeans and directing fluid flow in series through said first and thirdvalve plugs without re-entrant passage through said first valve plugwith said third valve plug in said second position.

13. A dispensing valve, comprising, in combination, an inlet line, avalve body connected to said line and having first and second valvechambers, first and second valve plugs in said first chamber and a thirdvalve plug in said second chamber, a first conduit connecting said lineto said first chamber, first bore means in said first valve plug forselective communication with said first conduit, first and secondpositions for each said first and second valve plugs and first andsecond operative positions and an intermediate off position for saidthird valve plug, a discharge opening for said dispensing valve, adiffuser in said dispensing valve, a body outlet from said valve body,said first bore means communicating with said body outlet, said firstposition of said first valve plug providing discharge of fluid from saidinlet line through said first conduit and said first bore means to saiddischarge opening through said body outlet and said diifuser, saidsecond position of said first valve plug closing communication betweensaid first conduit and said first bore means, a by-pass passageway insaid first valve plug providing fluid communication from said firstconduit to said third valve plug with said first valve plug in saidsecond position, first passageway means in said third valve plugproviding reentrant fluid fiow from said inlet line and said by-passpassageway through said third and second valve plugs to re-enter saidfirst bore means in said first valve plug to pass through said bodyoutlet and said diffuser to said discharge opening with said third valveplug in said first position, and second passageway means in said thirdvalve plug to pass fluid from said inlet line and said bypass passagewayto said discharge opening without reentrant communication through saidfirst valve plug with said third valve plug in said second position,said intermediate off position of said third valve plug shutting oiffluid flow therethrough.

14. A dispensing valve, comprising, in combination, first, second, andthird inlet lines, a valve body connected to said lines and having firstand second valve chambers, first and second valve plugs in said firstchamber and a third valve plug in said second chamber, first, second,and third conduits connecting said first, second, and third lines,respectively, to said first chamber, first, second, and third bore meansin said first and second valve plugs for selective communication withsaid first, second, and third conduits, respectively, first and secondoperative positions and an intermediate position for each of said valveplugs, a discharge opening for said dispensing valve, a diffuser in saiddispensing valve, a body outlet from said valve body, said third boremeans communicating with said body outlet, said first position of saidfirst valve plug providing intermixed discharge of fluid from said firstand third lines through said first and third conduits and said first andthird bore means to said discharge opening with fluid from said thirdline passing through said body outlet and said diffuser, said secondoperative position of said first valve plug providing intermixeddischarge of fluid from said second and third lines through said secondand third conduits and said second and third bore means to saiddischarge opening with fluid from said third line passing through saidbody outlet and said diffuser, a by-pass passageway in said first valveplug providing fluid communication from said third conduit to said thirdvalve plug with said first valve plug in said intermediate position,first passageway means in said third line and said by-pass passagewaythrough said third and second valve plugs to re-enter said third boremeans in said first valve plug to pass through said body outlet and saiddiffuser to said discharge opening with said third valve plug in saidfirst position, and second passageway means in said third valve plug topass fluid from said third line and said bypass passageway to saiddischarge opening without re-entrant communication through said firstvalve plug with said third valve plug in said second position, and saidintermediate position of said third valve plug shutting off fluid flowtherethrough.

15. A six-way dispensing valve, comprising, in combination, first,second, third, fourth, and fifth inlet lines, a valve body connected tosaid lines and having first and second valve chambers, first and secondvalve plugs in said first chamber and a third valve plug in said secondchamber, first, second, third, fourth, and fifth conduits connectingsaid first, second, third, fourth, and fifth lines, respectively, tosaid first chamber, first, second, third, fourth, and fifth bore meansin said first and second valve plugs for selective communication Withsaid first, second, third, fourth, and fifth conduits, respectively,first and second operative positions and an intermediate position foreach of said valve plugs, a discharge opening for said dispensing valve,a diffuser in said dispensing valve, a body outlet from said valve body,said third bore means communicating with said body outlet, said firstposition of said first valve plug providing intermixed discharge offluid from said first and third lines through said first and thirdconduits and said first and third bore means to said discharge openingwith fluid from said third line passing through said body outlet andsaid diifuser, said second operative position of said first valve plugproviding intermixed discharge of fluid from said second and third linesthrough said second and third conduits and said second and third boremeans to said discharge opening with fluid from said third line passingthrough said body outlet and said diffuser, said first position of saidsecond valve plug providing intermixed discharge of fluid from saidthird and fourth lines through said third and fourth conduits and saidthird and fourth bore means to said discharge opening with fluid fromsaid third line passing through said body outlet to said diffuser, saidsecond position of said second valve plug providing intermixed dischargeof fluid from said third and fifth lines through said third and fifthconduits and said third and fifth bore means to said discharge openingwith fluid from said third line passing through said body outlet andsaid diffuser, a by-pass passageway in said first valve plug providingfluid communication from said third conduit to said third valve plugwith said first valve plug in said intermediate position, firstpassageway means in said third valve plug providing re-entrant fluidflow from said third line and said by-pass passageway through said thirdand second valve plugs to re-enter said third bore means in said firstvalve plug to pass through said body outlet and said diffuser to saiddischarge opening with said third valve plug in said first position, andsecond passageway means in said third valve plug to pass fluid from saidthird line and said by-pass passageway to said discharge opening withoutre-entrant communication through said first valve plug with said thirdvalve plug in said second position, and said intermediate position ofsaid third valve plug shutting off fluid flow therethrough.

No references cited.

